Yes, I certainly know how lucky I am to live in a country with a nationalised health service. And I am eternally grateful to the rest of the population who have contributed to my healthcare via their taxes. I know that if I live to be a hundred, the taxes I pay won't get close to covering the cost.
I can only speak for myself, but I'm glad some of my taxes get spent of things like this, even if I were never to benefit, it's still an absolute good.